Compositions, methods and devices for control and clean-up of hazardous spills

Abstract

Disclosed are methods for treating hazardous materials, such as those which result from an unwanted spill or leak, which comprise one or more of the steps or effects of: neutralizing the dispersed material; solidifying the dispersed material; immobilizing the material; and/or reducing the evolution of harmful or unwanted gaseous forms from the spillage, preferably using a binding agent which comprises a polyacrylate-polyacrylamide cross-linked copolymer.

1. A system for suppressing the spread of an anhydrous hydrogen fluoride hazardous material, said system comprising:
 a container having an interior portion and an exterior side, said interior portion being adapted to receive a propellant; 
 a propellant in fluid communication with said interior portion; 
 a nozzle disposed on said exterior portion and in fluid communication with said interior portion; and 
 a binding agent that absorbs anhydrous hydrogen fluoride disposed within said interior portion or said nozzle, the binding agent comprising a cross-linked copolymer that comprises acrylamide units and acrylate units. 
 
     
     
       2. The system of  claim 1 , wherein said binding agent comprises acrylamide cross-linked with an acrylic acid salt. 
     
     
       3. The system of  claim 1 , wherein said binding agent is a solid. 
     
     
       4. The system of  claim 1  wherein said container is portable. 
     
     
       5. The system of  claim 1  wherein said nozzle is pivotal. 
     
     
       6. The system of  claim 1  wherein said propellant is disposed within said container. 
     
     
       7. The system of  claim 1  wherein said propellant is selected from a combustible fuel, a pressurized gas, a compressed liquid, or some combination thereof. 
     
     
       8. The system of  claim 2 , wherein the acrylic acid salt is selected from the group consisting of potassium acrylate, sodium acrylate, and ammonium acrylate. 
     
     
       9. The system of  claim 1 , wherein said cross-linked copolymer has an average liquid hydrogen fluoride adsorption capacity of at least about 45.2 grams of HF per gram of the cross-linked copolymer. 
     
     
       10. The system of  claim 1 , wherein the copolymer comprises from about 5 weight percent to about 60 weight percent of acrylamide units based upon the total weight of the copolymer.